Crate tracing_perfetto

Crate tracing_perfetto 

Source
Expand description

§tracing-perfetto

§Overview

tracing-perfetto is a Layer for tracing-subscriber that outputs traces in perfetto’s trace packet format that can be viewed with ui.perfetto.dev.

§Usage

Add this near the beginning of main:

use tracing_perfetto::PerfettoLayer;
use tracing_subscriber::{registry::Registry, prelude::*};

let layer = PerfettoLayer::new(std::sync::Mutex::new(std::fs::File::create("/tmp/test.pftrace").unwrap()));
tracing_subscriber::registry().with(layer).init();

Open that file with ui.perfetto.dev:

§Upgrade perfetto_trace.proto

  1. Download the latest perfetto_trace.proto into protos/peffetto_trace.proto.

  2. Run upgrade.rs

    • Windows cargo +nightly -Zscript upgrade.rs
    • *nix ./upgrade.rs

  3. Create a pull request with the changes.

§License

Licensed under the MIT license

Structs§

PerfettoLayer
A Layer that records span as perfetto’s TYPE_SLICE_BEGIN/TYPE_SLICE_END, and event as TYPE_INSTANT.

Traits§

PerfettoWriter
Writes encoded records into provided instance.